//
//  AppDelegate.swift
//  weibo
//
//  Created by Limonwei on 15/12/5.
//  Copyright © 2015年 heima. All rights reserved.
//

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?
    
    var observer: NSObjectProtocol?


    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        
        //数据库搭建
        SQLiteManager.sharedManager
        
        //printLog(NSBundle.mainBundle().infoDictionary)
        
        window = UIWindow(frame: UIScreen.mainScreen().bounds)
        
        //根控制器  判断是否登陆
        window?.rootViewController = LBWUserAccountViewModel.shareAccount.userLogin ? defaulRootViewController() : LBWMainViewController()
        
        window?.makeKeyAndVisible()
        
        //实现控制器的切换
        observer = NSNotificationCenter.defaultCenter().addObserverForName(LBWSwitchRootVCNotifation, object: nil, queue: nil) {[weak self] (noti) -> Void in
            printLog("切换根控制器")
            if noti.object is LBWOAuthViewController {
                self?.window?.rootViewController = LBWWelcomeViewController()
            }else{
                self?.window?.rootViewController = LBWMainViewController()
            }
        }
        return true
    }
    
    //判断是否有新版本
    private func defaulRootViewController() -> UIViewController {
        if hasNewVersion() {
            return LBWNewfeatureViewController()
        }else{
            return LBWWelcomeViewController()
        }
        
    }
    
    //是否有新版本
    private func hasNewVersion() -> Bool {
        let versionKey = "versionKey"
        
        //取出本地保存的版本号
        let localVersion = NSUserDefaults.standardUserDefaults().stringForKey(versionKey)
        
        //取出当前app的版本号
        let currentVersion = NSBundle.mainBundle().infoDictionary!["CFBundleShortVersionString"]! as! String
        
        //把版本号保存大本地
        NSUserDefaults.standardUserDefaults().setObject(currentVersion, forKey: versionKey)
        
        //版本号使用字符串,不要超过4位,不要比较版本号是否一样
        if let local = localVersion where currentVersion.compare(local) != NSComparisonResult.OrderedDescending{
            return false
        }
        
        printLog("\(localVersion),\(currentVersion)")
        return true
    }
    
    deinit{
        NSNotificationCenter.defaultCenter().removeObserver(observer!)
    }

    func applicationWillResignActive(application: UIApplication) {
        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
        // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
    }

    func applicationDidEnterBackground(application: UIApplication) {
        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
    }

    func applicationWillEnterForeground(application: UIApplication) {
        // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
    }

    func applicationDidBecomeActive(application: UIApplication) {
        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
    }

    func applicationWillTerminate(application: UIApplication) {
        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
    }


}

